//
//  CZVisitorView.swift
//  SinaWeiBo
//
//  Created by 刘幼寒 on 5/13/16.
//  Copyright © 2016 刘幼寒. All rights reserved.
//

import UIKit

//1.定义协议
@objc protocol CZVisitorViewDelegate: NSObjectProtocol
{
    //2.定义协议方法
    //注册按钮被点击后的代理方法
    optional func visitorViewDidClickRegister()
    //登录按钮被点击后的代理方法
    optional func visitorViewDidClickLogin()
    
}

class CZVisitorView: UIView
{
    //3.定义代理属性
    weak var delegate: CZVisitorViewDelegate?
    //MARK: - 公开的方法
    //设置访客视图的内容
    func setupvisionInfo(imageName: String, message: String)
    {
        //将转轮图片替换
        iconView.image = UIImage(named: imageName)
        
        //设置messageLabel
        messageLabel.text = message
        
        //隐藏小房子
        homeView.hidden = true
        //隐藏遮盖
        coverView.hidden = true
    }
    
    ///转轮旋转核心动画
    func startRotationAnimation()
    {
        //创建核心动画
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = M_PI * 2
        anim.duration = 20
        anim.repeatCount = MAXFLOAT
        anim.removedOnCompletion = false
        //将核心动画添加到转轮所在的层
        iconView.layer.addAnimation(anim, forKey: nil)
    }

    
    //添加到父控件
    //重写init（frame）：因为只有在创建访客视图对象的时候才调用这个方法
    //这个构造函数通过xib/sb里面创建才会走这个方法
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override init(frame: CGRect)
    {
        super.init(frame: frame)
        prepareUI()
    }
    
    private func prepareUI()
    {
//        self.backgroundColor = UIColor(red: 237 / 255.0, green: 237 / 255.0, blue: 237 / 255.0, alpha: 1)
        self.backgroundColor = UIColor(white: 237 / 255.0, alpha: 1)
        self.addSubview(iconView)
        
        self.addSubview(coverView)
        
        self.addSubview(homeView)
        self.addSubview(messageLabel)
        self.addSubview(registerButton)
        self.addSubview(loginButton)
        
        iconView.translatesAutoresizingMaskIntoConstraints = false
        homeView.translatesAutoresizingMaskIntoConstraints = false
        messageLabel.translatesAutoresizingMaskIntoConstraints = false
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        loginButton.translatesAutoresizingMaskIntoConstraints = false
        coverView.translatesAutoresizingMaskIntoConstraints = false
        
        //添加约束（最好只添加一次）
        //转轮
        //CenterX和父控件的CenterX重合
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        //Y方向也重合
        self.addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: -40))
        
        //遮罩图片
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: coverView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: registerButton, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        
        //小房子
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: homeView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1, constant: 0))
        //消息文字
        //宽度：当参照的view为nil时，属性为NSLayoutAttribute.NotAnAttribute
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 240))
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem:self , attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        //注册按钮
 /// 顶部和label底部距离16
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
 /// 左边和label对齐
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0))
 /// 宽度100
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))
 /// 高度35
        self.addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
        //登录按钮
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0))
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 16))
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 100))
        self.addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 35))
        
    }
    
    //MARK: - 按钮的点击事件
    //按钮点击事件方法是系统来调用，当按钮点击事件private后系统就会找不到这个方法了
    @objc private func didClickRegister()
    {
        //4.调用代理方法
        delegate?.visitorViewDidClickRegister?()
        
    }
    
    @objc private func didClickLogin()
    {
        //4.调用代理方法
        delegate?.visitorViewDidClickLogin?()
    }
    
    
    
    
    //MARK: - 懒加载
    /**
    *  所有的控件
    */
    /**
    *  转轮
    */
    private lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    /**
    *  小房子
    */
    private lazy var homeView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    /**
    *  消息文字
    */
    private lazy var messageLabel: UILabel = {
        let label = UILabel()
        //设置label
        label.text = "关注一些人，看看有什么惊喜！"
        label.textColor = UIColor.blackColor()
        label.font = UIFont.systemFontOfSize(16)
        label.textAlignment = NSTextAlignment.Center
        label.numberOfLines = 0
        label.sizeToFit()
        return label
    }()
    
    /**
    *  注册按钮
    */
    private lazy var registerButton: UIButton = {
        let button = UIButton()
        //设置
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        button.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        button.setTitle("注册", forState: UIControlState.Normal)
        
        //添加按钮的点击事件
        button.addTarget(self, action: "didClickRegister", forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
    }()
    
    /**
    *  登录按钮
    */
    private lazy var loginButton: UIButton = {
        let button = UIButton()
        //设置
        button.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        button.setTitle("登录", forState: UIControlState.Normal)
        button.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)
        
        button.addTarget(self, action: "didClickLogin", forControlEvents: UIControlEvents.TouchUpInside)
        
        return button
    }()
    
    /**
    *  转轮遮罩
    */
    private lazy var coverView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    
    
    
    

    

}
